Table VII. The set of variables selected by multiple regression analysis to explain the 100% variance in grain yield under each growth condition in 2010

Multiregression analysis showed the set of both agronomical parameters and metabolite levels, only metabolite levels, and metabolite levels under the WW condition explaining the 100% variance in grain yield. The results of the same analysis for 2011 are shown in Supplemental Table S8. Agronomic traits are shown in boldface. SEE, se of the estimate.

TreatmentAll ParametersOnly MetabolitesMetabolites in the WW Condition
WWGalactinol, Pro, octadecanoate, raffinose, xylitol, Thr, succinate, Phe, myoinositol, erythritol, glycerol, anthesis silking interval, itaconate, urea, silking dateGalactinol, Pro, octadecanoate, raffinose, xylitol, Thr, succinate, Phe, myoinositol, erythritol, glycerol, itaconate, glycerate, trehalose, AspGalactinol, Pro, octadecanoate, raffinose, xylitol, Thr, succinate, Phe, myoinositol, erythritol, glycerol, itaconate, glycerate, trehalose, Asp
SEE0.840.840.84
DSGalactinol, urea, octadecanoate, maltitol, glycerol-3-P, benzoate, putrescineGalactinol, urea, octadecanoate, maltitol, glycerol-3-P, benzoate, putrescineGalactinol, Pro, octadecanoate, raffinose, xylitol, Thr, succinate, Phe, myoinositol, erythritol, glycerol, itaconate, glycerate, trehalose, Asp
SEE0.590.590.65
HSGalactinol, xylitol, itaconate, Ala, anthesis date, Ser, urea, GABA, Tyr, IleGalactinol, xylitol, itaconate, Ala, raffinose, Ser, urea, GABA, Trp, IleGalactinol, glycerate, phosphate, Pro, erythritol, nicotinate, itaconate, glycerol, trehalose, Trp, succinate, xylitol, octadecanoate
SEE0.830.831.45
DS+HSGalactinol, trehalose, threonate, maltitol, glycerate, plant height, Fru, malate, Trp, β-Ala, ureaGalactinol, trehalose, threonate, maltitol, glycerate, nicotinate, Fru, malate, benzoate, phosphate, ureaGalactinol, Ala, raffinose, octadecanoate, succinate, myoinositol, Phe, Pro, xylitol, pyro-Glu, phosphate, urea
SEE0.370.370.40